This event is in the past.It took place on November 2, 2025 at Réserve naturelle régionale - Site Pierre Constant - Propriété du Syndicat mixte du parc naturel régional de Brière.










Observatoire de la Réserve naturelle régionale
Saint-Malo-de-Guersac
Discover the magic of Brière's marshlands at the Pierre Constant observatory. Immerse yourself in panoramic views of reed beds and waterways, spotting diverse birdlife from dabbling ducks to majestic herons.
Nature reserve
Birdwatching paradise
Panoramic views
Marshland ecosystem
Observatoire de la Réserve naturelle régionale










Discover the magic of Brière's marshlands at the Pierre Constant observatory. Immerse yourself in panoramic views of reed beds and waterways, spotting diverse birdlife from dabbling ducks to majestic herons.
Nature reserve
Birdwatching paradise
Panoramic views
Marshland ecosystem
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